So, I started working on the SDHI part. Since Dirk seems to be working on the clocks already (thanks!), I evaluated the patches for the mmc-subsystem and refactored the subset which gets the basic functionality run. A few cleanups were applied, too. The patches are RFC because I want to check one more issue (restore clock settings after software reset) and also I need to do Gen2 regression testing. However, release early, I wanted to show you what I am hacking on here. A branch for testing (with Dirk's clock patches and DTS additions can be found here): git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/v8-sdhi-nodma Further testing much appreciated. It works fine on my Salvator using SD cards on both, SDHI0 and SDHI3. Simple testing, though, no stress testing yet. Thanks, Wolfram Shinobu Uehara (1): mmc: sdhi: Add EXT_ACC register busy check Wolfram Sang (5): mmc: sdhi: error message on ENOMEM is superfluous mmc: tmio: add flag to reduce delay after changing clock status mmc: tmio: remove stale comments mmc: sdhi: use faster clock handling on RCar Gen2 mmc: sdhi: Add r8a7795 support Documentation/devicetree/bindings/mmc/tmio_mmc.txt | 1 + drivers/mmc/host/Kconfig | 2 +- drivers/mmc/host/sh_mobile_sdhi.c | 54 +++++++++++++++------- drivers/mmc/host/tmio_mmc_pio.c | 7 +-- include/linux/mfd/tmio.h | 4 ++ 5 files changed, 45 insertions(+), 23 deletions(-) -- 2.1.4
